Plate anemometers have been used to trigger high wind alarms on bridges. They are used on these high places because they are in a plate shape ; has a good measurement status on higher altitudes.

While direct measurement of the most violent tornado wind speeds is nearly impossible, since conventional anemometers would be destroyed by the intense winds, some tornadoes have been scanned by mobile Doppler radar units, which can provide a good estimate of the tornado's winds.

Scientists at meteorologically extreme places such as Mount Washington in New Hampshire often have to break huge chunks of hard rime off weather equipment, in order to keep anemometers and other measuring instruments operating.

Hot wire anemometers use a very fine wire ( on the order of several micrometres ) electrically heated up to some temperature above the ambient.

Sonic anemometers can take measurements with very fine temporal resolution, 20 Hz or better, which makes them well suited for turbulence measurements.

Optical measurement avoids the need for Pitot tubes, hotwire anemometers or other intrusive Flow measurement probes.

Since 1967, the University of Hamburg has been using the 304 m-mast as a five-level meteorological measurement platform, with thermometers, hygrometers, and anemometers mounted at various heights up to 250 m above ground.

An international standard for this process, ISO 16622 Meteorology — Sonic anemometers / thermometers — Acceptance test methods for mean wind measurements is in general circulation.

Two-dimensional ( wind speed and wind direction ) sonic anemometers are used in applications such as weather stations, ship navigation, wind turbines, aviation and weather buoys.

Details of the modern climate record are known through the taking of measurements from such weather instruments as thermometers, barometers, and anemometers during the past few centuries.

Fire-control systems are often interfaced with sensors ( such as sonar, radar, infra-red search and track, laser range-finders, anemometers, wind vanes, thermometers, etc.

Three cup anemometers are currently used as the industry standard for wind resource assessment studies.

Additionally, PWM ( pulse-width modulation ) anemometers are also used, wherein the velocity is inferred by the time length of a repeating pulse of current that brings the wire up to a specified resistance and then stops until a threshold " floor " is reached, at which time the pulse is sent again.

Since the speed of sound varies with temperature, and is virtually stable with pressure change, sonic anemometers are also used as thermometers.

Three-dimensional sonic anemometers are widely used to measure gas emissions and ecosystem fluxes using the eddy covariance method when used with fast-response infrared gas analyzers or laser-based analyzers.

These are the earliest anemometers and are simply a flat plate suspended from the top so that the wind deflects the plate.

Most anemometers are Savonius turbines for this reason, as efficiency is irrelevant to the application of measuring wind speed.

Starting from the tropical cyclone season in 2007, the signals are issued based on a network of 8 near sea-level reference anemometers over Hong Kong.

The lack of moving parts makes them appropriate for long term use in exposed automated weather stations and weather buoys where the accuracy and reliability of traditional cup-and-vane anemometers is adversely affected by salty air or large amounts of dust.

Typically these mount anemometers at a range of heights up to the hub height of the proposed wind turbines, and they log the wind speed data at frequent intervals ( e. g. every ten minutes ) for at least one year and preferably two or more.

The first designs of anemometers which measure the pressure were divided into plate and tube classes.

Sonic anemometers, first developed in the 1950s, use ultrasonic sound waves to measure wind velocity.

Many anemometers, official and unofficial, within the heavily stricken area of northwestern Oregon and southwest Washington were destroyed before winds attained maximum velocity.

The voltage output from these anemometers is thus the result of some sort of circuit within the device trying to maintain the specific variable ( current, voltage or temperature ) constant.

Laser Doppler anemometers use a beam of light from a laser that is divided into two beams, with one propagated out of the anemometer.

The tornado then moved north toward the airport, where at 10: 00PM, anemometers were already reading winds of 77 knots ( approximately.

These wind velocities were cross-checked on two different anemometers at the bridge control tower.

To help him on this religious aspect of primitive jazz he had `` Big '' Miller, as a preacher-singer and Hannah Dean, Gospel-singer, while Oscar Brown Jr., an extremely talented young man, did a slave auctioneer's call, a field-hands' work song, and a beautifully sung Negro lullaby, `` Brown Baby '', which was one of the truly moving moments of the festival.

For instance, the Northwest relies on local seafood, while in the South, Mexican flavors are extremely common.

Some critics of this approach feel that while these models approach biological reality as a representation of how the system works, they lack explanatory powers because complicated systems of connections with even simple rules are extremely complex and often less interpretable than the system they model.

Opus won that same privilege years after Calvin and Hobbes ended, while Wiley Miller circumvented further downsizings by making his Non Sequitur Sunday strip available only in an extremely vertical ( near-page-long ) arrangement.

However, poor performances at the road course of Watkins Glen, where he wrecked coming out of the chicane, a wreck with Chad Little while leading the spring race at Bristol, and mid-pack runs at intermediate tracks like Charlotte and Dover in a season dominated by the Ford Taurus in those tracks of Roush, Yates, and Penske, coupled with the extremely consistent Joe Gibb's No. 18 team with Bobby Labonte, denied Earnhardt the coveted eighth championship title.

Necker realized that the country's extremely regressive tax system subjected the lower classes to a heavy burden, while numerous exemptions existed for the nobility and clergy.

It has been argued that while this strategy was extremely effective in advancing the safety, dignity and equality of Canadian homosexuals, its emphasis of sameness came at the expense of difference and may have undermined opportunities for more meaningful change.

Gaddafi stopped endorsing terrorist attacks on western countries, and while his behaviour remained extremely erratic, occasionally provoking international incidents such as the HIV trial in Libya and the Swiss-Libyan diplomatic crisis, Gaddafi managed to improve his image in the west and by the early 2000s had mostly benign relations with western democracies.

Alloys with less carbon than this, such as wrought iron, cannot be heat treated to a significant degree and will consequently be of low hardness, while a higher carbon content creates an extremely hard but brittle material that cannot be annealed, tempered, or otherwise softened.

At night the F layer is the only layer of significant ionization present, while the ionization in the E and D layers is extremely low.

For example, introns are extremely common within the nuclear genome of higher vertebrates ( e. g. humans and mice ), where protein-coding genes almost always contain multiple introns, while introns are rare within the nuclear genes of some eukaryotic microorganisms, for example baker's / brewer's yeast ( Saccharomyces cerevisiae ).

The “ active homosexual act is considered as an assertion of one ’ s aggressive masculine superiority, while the acceptance of the role of the passive homosexual is considered extremely degrading and shameful because it casts the man or youth into a submissive, feminine role ”.

Unlike Internet market the state of the mobile market in the country is very poor, while coverage is not really an issue all carriers practice archaic methods that carriers in many developed countries have long since abolished, general prices are very high compared to other CIS and even EU countries with no change in this segment in many years in fact in some cases the prices have even increased, mobile Internet access is in no better condition with very high prices and very low monthly caps compared to extremely well developed and cheap wired Internet access.

The ratio of M to R increases by a factor of only three over 2. 5 orders of magnitude of M. This relation is roughly proportional to the star's inner temperature T < sub > I </ sub >, and its extremely slow increase reflects the fact that the rate of energy generation in the core strongly depends on this temperature, while it has to fit the mass – luminosity relation.

These problems were epitomized in a story that Sanger would later recount in her speeches: while Sanger was working as a nurse, she was called to Sadie Sachs ' apartment after Sachs had become extremely ill due to a self-induced abortion.

Thus, while the probability might be extremely small that any particular universe would have the requisite conditions for life ( as we understand life ) to emerge and evolve, this does not require intelligent design per the teleological argument as the only explanation for the conditions in the Universe that promote our existence in it.

When Operation Deadlight was activated, it was found that many of the U-boats were in an extremely poor condition as a result of being moored in exposed harbours while awaiting disposal.

Turkey has the highest documented rate in the world, with 1 in 2, 600 births, while countries such as Finland and Japan have extremely low rates with fewer than one case of PKU in 100, 000 births.

* Anti-climb paint is a non-drying paint that appears normal while being extremely slippery.

Dexter begins to infect the Norfolk locals while Calvert begins to trade in the extremely revered " Norfolk Tears ", an alcoholic beverage, coming into opposition with Syrinx.

This type of language is used, according to E. Segal, for “ the forceful inversion, the reduction of the master to an abject position of supplication … the master-as-suppliant is thus an extremely important feature of the Plautine comic finale .” The imperative mood is therefore used in the complete role-reversal of the normal relationship between slave and master, and “ those who enjoy authority and respect in the ordinary Roman world are unseated, ridiculed, while the lowliest members of society mount to their pedestals … the humble are in face exalted ”.

The great nobles were discontented with Philip's advantageous marriage, while his mother and four uncles, all of whom exercised enormous influence over Louis, were extremely unhappy with his association to the throne, causing a diminution in their power.

Even with the defining postulates of both Einstein's theory of general relativity and quantum theory being indisputably supported by rigorous and repeated empirical evidence and while they do not directly contradict each other theoretically ( at least with regard to their primary claims ), they have proven extremely difficult to incorporate into one consistent, cohesive model.